Citroën C1n C1 Peugeot 107 634681

Description

Right rear lamp bulb socket for first series cars Citroën C1 and Peugeot 107
The functionality of the bulbs themselves is not guaranteed.

Part description

Used right rear lamp bulb socket designed for the rear lamp. It serves as a carrier for the bulbs and at the same time ensures their correct seating and electrical connection in the lamp. Replacing the sockets is usually a quick and cost-effective solution to problems with the backlight, such as blackouts, intermittent lighting or overheating of the contacts.

Warning: according to the documents, the functionality of the bulbs that can be installed in the socket is not guaranteed.

Technical information

• Manufacturer: Stellantis (CITROEN / PEUGEOT)
• Model: Citroën C1 I, Peugeot 107
• Other numbers: 81550-0H060, 6351X8, 6351X6

Product codes

• Product codes: 634681

Installation recommendations

Generally/typically the following procedure applies to the tail lamp socket. The exact steps may vary depending on the specific design of the lamp.

1) Before assembly (checks of used part)

• Compare the new socket with the old piece: shape, fit, connector, number and layout of positions for bulbs.
• Check the contacts (they must not be significantly burnt, oxidized or loose).
• Check the plastic locks and seating surfaces (cracks can cause poor seating and light outages).
• If there are light bulbs in the socket, consider them unverified – it is recommended to check them before installation or replace them immediately.

2) Necessary tools and materials (in general)

• Basic set of screwdrivers / bits (according to the design of covers and lamp)
• Clean cloth
• Contact cleaner for wiring (optional)
• Dielectric petroleum jelly for contacts (optional, very small amount)

3) Step-by-step assembly procedure

1. Turn off the ignition and all lights.
2. Provide access to the rear lamp (typically after opening the boot lid and removing the cover in the trim, if present).
3. Disconnect the lamp/socket electrical connector (do not pull on the cables, release the connector fuse).
4. Remove the socket from the rear lamp (typically after unlocking/rotating or loosening the locks according to the design).
5. Inspect the inside of the lamp: for dirt, moisture or visible signs of overheating.
6. In case of oxidation, clean the connector and contacts with a suitable cleaner and let it air out.
7. Place the bulbs in the socket correctly in their respective positions and check that they are firmly seated.
8. Put the socket back into the lamp and secure it with the locks (it must fit evenly).
9. Connect the electrical connector and check that the fuse of the connector clicks properly.
10. Put back any covers/upholstery.

• 4) Post-assembly checks and function verification

  • Verify the function of all rear light modes (depending on the car’s equipment): outline, brake, direction, reverse, fog.
  • Check for lights flickering, falling out when the harness/connector is shaken and the connector heating up.
  • After a short ride, check again that the socket is firmly seated and there is no moisture in the lamp.

  5) The most common assembly mistakes + how to avoid them

  • Incorrectly seated base → make sure that it is fully seated and the locks are correctly secured.
  • Exchanging light bulbs/positions → take a photo of the positions before disassembly, insert the light bulbs according to the layout in the socket.
  • Damage to the connector by pulling on the cables → always disconnect by the body of the connector and release the fuse.
  • Ignoring oxidation and humidity → clean the contacts and check that the lamp is tight.

  Reasons why the part is damaged

  • Overheating of contacts (higher transition resistance, loose contact, long-term load) and subsequent burning of the sockets.
  • Oxidation of the contacts due to humidity in the rear lamp.
  • Vibration and mechanical stress – squeezed locks, loose seating, intermittent lighting.
  • Incompetent handling when changing light bulbs (bent contacts, cracked plastic).
  • Aging of the material and temperature cycles, which over time reduce the strength of the plastic and the flexibility of the contacts.